Publications by authors named "Ahmet Y Bas"

Objective:  Ocular hemorrhages (OHs) may cause visual disturbances and incidence vary from 18 to 39% in newborns. Precipitated/instrumental delivery and perinatal asphyxia were predefined risk factors. Acidosis can interfere with coagulation and disrupt the pressure of ocular capillaries and put infants with moderate acidosis with or without hypoxic-ischemic encephalopathy at risk for OH.

View Article and Find Full Text PDF

Background: Transcutaneous bilirubin (TCB) measurement is a simple, painless, and time-saving alternative for the assessment of TSB (total serum bilirubin) levels. However, TCB measurements obtained during phototherapy can yield inaccurate results. We evaluated the effectiveness of TCB measurements obtained from protected skin areas in patients who underwent phototherapy.

View Article and Find Full Text PDF

Aim: Preterm neonates are exposed to many painful procedures in neonatal intensive care units. This study aims to evaluate the effect of oscillometric blood pressure (BP) measurement on pain response in preterm infants.

Methods: This prospective study was performed over 4 months in a level III neonatal intensive care unit.

View Article and Find Full Text PDF

Background: Advances in neonatal care have led to increased survival of extremely preterm infants. Extremely low-birth-weight (ELBW) infants, defined as infants weighing less than 1000 g at birth, constitute a significant portion of neonatal intensive care unit (NICU) patients. The aim of this study is to determine the mortality and short-term morbidities of ELBW infants and assess the risk factors related to mortality.

View Article and Find Full Text PDF

Introduction: Infants with perinatal asphyxia are at risk for organ failure aside from the brain, regardless of the severity of the asphyxial insult. We aimed to evaluate the presence of organ dysfunction other than the brain in newborns with moderate to severe acidosis at birth, in the absence of moderate to severe hypoxic ischemic encephalopathy.

Materials And Methods: Data of 2 years were retrospectively recorded.

View Article and Find Full Text PDF

Objective: This study aimed to evaluate the clinical characteristics of the neonates who fell in the maternity ward and identify the incidence of near miss events during the immediate postpartum period.

Study Design: The study consisted of two steps. The retrospective part included the evaluation of admissions due to the in-hospital newborn fall for 6 years.

View Article and Find Full Text PDF

Background: The aim of this study is to investigate the TyG index and TG/HDL-C ratio and their relationships with insulin resistance in LGA infants.

Methods: A prospective controlled study was conducted including 65 LGA and gestational age, gender-matched appropriate for gestational age (AGA) neonates. Serum TG, total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), insulin and glucose levels were measured within two hours after birth, TyG index and HOMA-IR values were calculated.

View Article and Find Full Text PDF

Papillorenal syndrome, also known as renal coloboma syndrome, is characterised by congenital optic disc anomalies and renal abnormalities. Mutations in the PAX2 gene, which plays a critical role in embryogenesis, cause this syndrome. Other related anomalies are less commonly observed.

View Article and Find Full Text PDF

Aim: The aim of this study is to determine the incidence of metabolic bone disease (MBD) and assess the risk factors for development radiologic evidence of MBD.

Methods: Preterm infants with gestational age ≤32 weeks and birth weight ≤1500 g were included in this prospective study. Metabolic bone disease was defined as hypophosphatemia (phosphorus levels <4 mg/dl), ALP levels >450 U/L, or radiologic findings of MBD at four weeks of age.

View Article and Find Full Text PDF

Objective: The average time for umbilical cord separation in term neonates is 7 to 10 days. Prematurity, phototherapy, prolonged duration of antibiotic treatment, and parenteral nutrition are other factors which were demonstrated to delay cord separation. In the previous studies including greater premature infants, the time of separation of the umbilical cord was shown to vary 2 to 3 weeks.

View Article and Find Full Text PDF

Aim: Bevacizumab may affect preterm infants' ongoing organogenesis with its antiangiogenic effects. We aimed to compare neurodevelopmental outcomes (NDO) of preterm infants treated for retinopathy of prematurity (ROP) with laser photocoagulation (LP), intravitreal bevacizumab (IVB) or both treatments, and to find out the effects of IVB on NDO.

Methods: Medical records of preterm infants with ROP treatment and evaluation for NDO were retrospectively collected between 1 January 2017 and 31 June 2019.

View Article and Find Full Text PDF

In this study, we aimed to compare the clinical outcomes of Premature Preterm Rupture of Membranes (PPROM) cases diagnosed by classical speculum examination and by placental alpha microglobulin-1 protein (PAMG-1) assay. The medical records of all patients with singleton pregnancies that were diagnosed with PPROM were retrospectively reviewed. Singleton pregnancies with PPROM diagnosis that was confirmed either by direct visualisation of amniotic fluid leaking through the cervix or by placental alpha microglobulin-1 protein (PAMG-1) assay if no amniotic fluid leakage was documented were included in the study.

View Article and Find Full Text PDF

Due to immaturity of immune function and the possibility of mother-fetal vertical and aerosol transmissions, neonates are particularly susceptible to the new coronavirus (SARS-CoV-2). Perinatal-neonatal departments should cooperate closely and take integrated approaches, and neonatal intensive care units (NICU) should prepare emergency plans for the coronavirus disease 2019 (COVID-19) as far as possible, so as to ensure the optimal management and treatment of potential victims. During the epidemic of COVID-19, the emergency response plan for the NICU should be based on the actual situation, including diagnosis, isolation, and treatment, as well as available equipment and staffing, and take into account the psychosocial needs of the families and neonatal care staff.

View Article and Find Full Text PDF

Objective: To investigate the early neonatal outcomes of very-low-birth-weight (VLBW) infants discharged home from neonatal intensive care units (NICUs) in Turkey.

Material And Methods: A prospective cohort study was performed between April 1, 2016 and April 30, 2017. The study included VLBW infants admitted to level III NICUs.

View Article and Find Full Text PDF

Objective: To determinate the effects of bilirubin and phototherapy on oxidative stress in newborns.

Study Design: A case-control study.

Place And Duration Of Study: Third level Newborn Intensive Care Unit, Ankara Etlik Zubeyde Hanim Women's Health Teaching and Research Hospital, Turkey, from May to August 2017.

View Article and Find Full Text PDF

Developments in perinatal and neonatal care have increased the survival rate of high-risk newborns but led to a rise in chronic diseases seen in these infants. A significant number of them attend primary and secondary health care centers after discharge; however, there are very few standard protocols for the long-term follow-up of these babies. Therefore, we aimed to establish a follow-up guideline that emphasizes on universal screening schemes and takes into consideration national data.

View Article and Find Full Text PDF

Retinopathy of prematurity is a pathophysiological condition that occurs in relation to abnormal proliferation in the retinal vessels in premature babies. Its exact pathogenesis is not known. In Turkey, the increased chance of survival in premature babies with much younger gestational age and much lower birth weight in parallel with the developments in neonatal care causes retinopathy of prematurity, which has led to vision problems and blindness to emerge as a more frequent problem.

View Article and Find Full Text PDF

Background/aim: Turkey accepts refugees from many countries, principally Syria. More than 2.7 million refugees live in Turkey.

View Article and Find Full Text PDF

Purpose: Since twin pairs with discordance have equal gestational age (GA), discordant twins may constitute an appropriate group to investigate the specific effect that birth weight (BW) has on the development of retinopathy of prematurity (ROP). The present study aims to investigate the effect of BW on any and severe stages of ROP development in twin pairs.

Methods: Fifty-two discordant twin pairs (104 preterms) born ≤32 gestational weeks, who were diagnosed with a minimum of 18% discordance between their BWs, were retrospectively analyzed.

View Article and Find Full Text PDF

Objective: A temporal relationship has been reported between necrotizing enterocolitis, anemia, and red blood cell transfusion (RBCT) in preterm neonates. However, the mechanism underlying this association is not clearly defined. Intestinal (I-) and liver (L-) fatty acid binding proteins (FABPs) have been proposed as plasma markers for the detection of acute intestinal injury.

View Article and Find Full Text PDF

The primary aim of the present study was to investigate the survival rates of periviable births in a referral Level III NICU center in Turkey; the secondary aim was to determine the perinatal and natal risk factors related to mortality. This retrospective cross-sectional study was conducted at the Neonatal Intensive Care Unit between 1 January 2011 and 31 December 2015. All live deliveries occurring from 22 0/7 weeks to 25 6/7 week of gestation were included in the study (total  = 165).

View Article and Find Full Text PDF

Background: The complete blood cell count (CBC) and peripheral blood smear were the most commonly ordered tests for the diagnosis of neonatal sepsis. Delta neutrophil index (DNI) shows leucocyte differentiation and calculated while CBC is performed.

Aims: We aimed to evaluate the value of DNI in neonatal sepsis.

View Article and Find Full Text PDF

Background: Preterm infants are scheduled to receive total feeding amount in either 3-hour or 2-hour intervals. A gavage feeding may be required if the scheduled amount is not completed orally. Feedings every 2 hours are one-third smaller than feedings every 3 hours.

View Article and Find Full Text PDF

Thiols are organic compounds containing sulfhydryl groups which exert antioxidant effects dynamic thiol-disulfide homeostasis. The shift towards disulfide indicates the presence of oxidative environment. The thiol-disulfide homeostasis has not been studied in different mode of delivery before.

View Article and Find Full Text PDF